Universal indicator.



H. C. MILLER.

UNIVERSAL INDICATOR.

APPLICATION mm JULY 19.19I5.

1,269,728. Ialvuted June 18, 1918 WITNESSES: c

A TTORNE Y IN VEN TOR.

50 Briefiy stated, the machine comprises a STATES PATENT OBEIGR HAROLD C. MILLER, 01? SAGINAW, MICHIGAN.

1 umvnnsAL INDICATOR.

Appllcation'fllcd Jun 19,

'. alinei'nent indicator more especially designed for tool-makers and machinists use for testing the accuracy of various kinds of lathe and machine work, and operating when applied to the work to accurately and auto matically show to what extent the work deviates or varies from a predetermined dimension, or is out of true.

The main object of the invention is to,

provide a more simple and effective device of universal application which may be attached to surfaces and places to be read while the work is in motion and so test a larger variety of work than heretofore practised.

Other objects and uses will be orought out in the following description, rtference being made to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

, Iri'fthirdrawings .Figure 1 is a plan view ofh'lnfirxstrument embodying my invention; Fig 2, a front elevation Fig; 3; aspcti on on the planePLO-S, shown ih Eig. 2;

Fig. 4 section on the plane X"Y, shownin Fig. 1; Fig. 5 is an enlarged view of a portionof Fig. 3.

In Figs. 3 and 5 the hubs D and D are represented b crossed sectional lines. It is optional w ether the hubs D and D"in;; Figs. 3 and 5 be attached to the case D by screws or other means or be apart of saii caseD.-.QThe cross sectional lines shown at D and D are intended to represent this 'portion in Figs.f3 and 5. All internal working' parts with the exception of the coiled 5 ring)" 'Fig. 5, that fall on the section p anes, are left plain for the sake of clearness.

shank which has one end squared and is madeto fit and hold a case or frame. An-

' other case on frame is fastened to this case which is free'lto rotate about the same. The indicating mechanism comprises an index Specification of Letters Patent.

Patented June 18, 1918. 1915. Serial No. 40,806.

or pointer with a sleeve attached thereto and a lever or feeler with intervening mechanism whereby any movement of the lever is passed on to the index and sleeve.

Reference to the drawings shows the construction of the indicator to be as follows:

A round shank A, having one end squared,

shown at W and W is machinedto fit and hold the case D. This shank A may be held aws of a milling machine chuck, or? inor to a bool-post of a lathe or other in the clasped devlce. -Hi1'1ged on the hubs D and D: (which asalready indicated may be either a part of or fastened to the-case D) and freeto rotate about the same, is the case A. The extremities of the parts A and A form a means for adjusting the casings relatively to each othen. This adjustment may be effected by taking these extremities one in each hand and moving the one casing withrespect to the other. The casings may then be locked indifferent positions by means of the thumb screw G, which is screwed into case D and works in the slot T, Fig. 1. Both of the above mentioned cases, A and D are made of two parts held together by screws or other means, as indicated at points 6, 7, 8, 9, 10, 11, 12, and 13. lhe lever N, Fig. 3, swings on the ointed screws K and K which'are locke by the nuts J and J. The spring 6' which is fastened to the bottom of caseA by means of the small screw (1' holds said leveror feeler N in proper position, as shown in Fig. 4. Said spnn b exerts a stronger pressure 111 n the coi ed spring f hereinafter descri Lever d swings on thetapered screw 1} which is locked by nut The pin a is fastened in such position in. lever ckas to rest on top of le'ver or feeler N. Geanteeth are cut in the end of lever spindle carrying the large gear and the drum j" about which is wound the coiled spring f, which is fastened atone end to the drum j,-and at the other end to the case D by means of the small screw e. The spindle'upon which the gears k drum are mounted swin s on the screws F an F", which are lock by the nuts E and y" and the and la An index U" works lengthwise in the hole drilled in the shank A which is hushed u! 7" Fig. 5. At one end of sold index U" 2L rack is cutwhich meshes with the large gear 5'. At the other end of said index l :i holc'is drilled at right angles to it. IiNlS. through which hole a pin U passes, connecting the index U" with the sleeve U, by passing through same. A slot U" is cut in shank A To accommodate the pin U.' A glass tube C may inclose that portion of shank A in which the slot C is out, being held imposition by the nut B. Upon that portion of shank A which is inclosed by the tube (1 lines are etched or cut a suitable dis Iancc apart and at right angles to the axis of said shank A. Each line passes completely about the circumference of said shank A and is broken only by the slot C". The coiled spring f in Fig; 4 is shown broken at Zso as not to interfere with the drawing of the gearing. Said spring is so coilcn as to bring tension against lover or fcclcr N at the point where pin a rests on said lever N. Therefore, any movement of the lever N, in the direction of the arrow Fig, -1 will he followed by a movement 01 their-Yer (7 and the gears 71, H and j as the corresponding arrows indicatejn Fig. 4.

It obvious that the index I will then travel or mow toward lever N, bringing with it the sleeve U. It will readil be seen that should the indicator be hel in the jaws of a milling machine chuck, or other appropriate machine or appliance, and the lever N be brought in contactwith a shaft or any round object, and the millin chine or other machine or appliance c set in inotion so that the point of lever or l'ccler N revolves about said shaft, or other round object, any variation of alinerncnt between the axes of said machine and said shaft will at once be shown by a movement of sleeve U. Sleeve U being round to fit shank A, and having its ends faced true and at right angles to its axis will pass back and forth over the lines heretofore mentioned, which are cut or etched about shank A.

Thus it will be seen that any variation of sleeve U comes to a rest. when a perfect,"

alincmcnt mill have been found.

The. aboxc applications of my indicator show the utility of" the device. it is however apparent that many other nf-cs will. in prac rice be found which are not mentioned herein.

shape and or anization of the active members of the in icator without departing from the spirit of the invention.

This indicator may be used in milling machines, lathes, shapers or in any other ma- 1o chine requiring a measuring device to ascertain and maintain a given or predetermined location or shape of work.

-Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a device of the kind described, two casings, one of said casin bein provided with circular recesses, hu 5 carried by the other casing and extending into the recesses, whereby pivotal adjustment of the two casings is obtained, means for adjustably securing the two casings together, a feeler carried by one of theicasings, an index carried by the other-casing, and an 0' er'ative connec- 35 tion between the feeler an 'the index, substantially'as described. 2 i l. l I

2. In an: indicetor of thejchcracter described, indexgmeanstforg moving the same,a lever -goiifimeanswperatively connectin said ever and index, a pin carried by said lever, a feeler member, and means for movingth'e feeler member into engagement with said pin forreversing the motion of the said index,'fsubstantially as described.

3. In an=indiciitornof the character described, a feeler, clever, a reciprocating index, gear means operativelylconnectin said levenand index, and-means for yiel ingly: opposing the operation 10f, the said means, substantially-asidescribed i f i V 4. In an indicabori'of the character described, 11 reciprocatin index," means for normally moving the in ex in one direction,

a spring operated pivotally mounted. feelcr normally preventing the said means from operating},l and ear means 0 erativel connecting t e sai index and eeler, su stantially as described, i

5. In an indiciitor-of the character (10- scribed, a casing rovided with hubs, an index carried there 37, a second casing pivotally mounted upon the hubs, means for securing the, casings in adjusted positions, a. feeler c rried'by the said second casing, and gear me ns connecting the index and the feeler whereby motion of the feeler causes a resultant motion of the index, substantially as described.

6. In an indicator of the character de scribed, an index, a rack carried thereby, a 3 gear meshing with the said rack and having a second or coaxial therewith, a third gear operated y the said coaxial gear, a, fourth gear coaxial with said third gear, a lever operated by the said fourth gear, and a feeler' nornnilly opposing the motion of the said lever, substantially as described.

7. In an indicator of the character described, a frame, a reciprocating index carno ricd therehy a fecler pivotally mounted Within said frame, gear means mterconnectlng said index and feeler, and. means normally tending to actuate the said fceler to oppose the motion of said index, substantially as described.

8. In an indicator of the character (lo-- scribed, a casing, a feeler pivoted to the casing, a reciprocating index provided with a rack extending into said casing, gear means in said casing engaging said rack, a drum carried by the said gear means, and a coiled spring fastened to the drum and to the casing to operate the said gear means, substantially :ri wd.

1). A test indicator unn irising two casings each having: a. pintly circular portion. th circular gird-tine, of one casing li ing}; partly ineloscd within the par ly circular portion of the other. the circular no! (i-ins ici'iniiting relative adjustment of (he casings. an index carried by one of tinrasings. lllLdliE with in said casing i'or operating the said index, a l ceier carriwl by the second casing and mirmally opposing the motion of the said index, means operatively connecting the feeler with the index, and means for scour ing the casings in an adjusted position.

10. A test indicator comprising a casing, an index carried. thereby, gear mechanism for moving the said index, springmeans for operating the said mechanism, a second casing pivotally mounted upon the first casing, means for securing the casings in adjusted position, a lever carried by the said second casing and also T EItLlTCd by said gear mechanism. and a ftaicr member carried by the said second casing and mirmally opposing the motion of the said index.

11. A test indicator comprising an index, a lever, gear means operatively connecting said index and lever, means for moving the index, and a spring operated feeler normally opposing the motion of the lever and thereby preventing the said means from operating. suhstantially as described.

l2. A test indicator comprising a casing, a reciprocating index carried thereby, a fecler pivoted. to the casing, means "in the casing: normally actuating the fceler to oppose the motion of the index, substantially as described.

1?. in a test, indicator of the character described. a casing, an. index extending thereinto, gear means engaging said index, a spring fastened to the gear means and cars ing to operate the gear means. a feeler, and means operativcly connecting the feeler and said gear means. substantially as described.

It. A trst imlicator comprising a casing, an index extending: iiwreinto. gear means engaging said index, a spring; fastened to the gear means and casing to operate the gear means. a feclcr. and means engagin the 1" eeler to oppose the operation of the spring, sub tantially as described.

1.). A. test indicator comprising a casing, an index carried thereby, a rack carried by the index, gear mechanism for moving the rack. spring means vtor operating the said mecl: nism, a second casing pivotally mounted upon the first casing. means for securing the casings in adjusted position. a lever carried by the said second casing, a circular rack carried thereby and meshing with one of the gears a pin carried hy said lover, a v' icher Inemher carried by said second casing. and a spring: actuating the fcoler mom oer to engage the pin and thereby oppo the motion. of the said index, substantially as descriliied.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HAROLD C. MILLER. Witnesses:

A. (J. SEIFERT, A. E. Wnsrmn. 

